Storage battery



ab? l', i930., c. J. DUNzwElLER STORAGE BATTERY Filed Sept. 23. 1925 2o ing, the specific. object being to render it In order that the plates may be supported 7o Patented July 1, 1930 i 1 j i STATES PATENT OFFICE CARL J'. DUNZWEILER, OF CLEVELAND, OHIO, ASSIGNOB TO'WILLARD STORAGE BAT- TERY COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF WEST VIRGINIA.

STORAGE BATTERY Application led September 23, 1925. Serial No. 58,053.

This invention relates to storage batterpreferably lass. In this instance the jar is ies, and particularly to small battery conof rectangu ar cross-section, as is preferred. structions such, for example, as may be em- The cover 11 is also formed of insulating ployed advantageously in B radio batmaterial, and preferablyv of semi-hard rub- 5 teries. ber. It is of rectangular shape, having al 55 One of the objects of the invention is to body ortion which fits friction tight in the provide a battery which is sim le in contop o the jar 10, and a flange 11a which struction, inexpensive to manu acture and extends over'and rests on the top of the jar. easily assembled. The battery element consists of positive A further object is to provide an improved and negative plates 12, (one of each) and a 00 cover construction with the plates of the batsuitable insulator 12a between them. The tery element supported by the cover, with. latter may be, and preferably is supported provision for definitely locating the terminal from the bottom of the jar, but the plates posts in the cover so that the plates will be are supported from the cover by reason of 15 supported at the right height in the jar, and the fact that the terminal posts 13 of the 55 at the proper distance from the bottom plates extend through and are tightly fitted thereof. in the cover. They fit sufficiently tight in A further object is to rovide certain imthe cover toform an effective seal against provements in the plug or the lling openleakage of battery solution.

more convenient to remove or replace 'the at the desired height in the 'ar 10, the posts plugs, particularly when a large number of are provided immediately a ove and below cells, such as herein shown, arel serially conthe cover with protuberances or flanges 13", nected by cross-connectors in the well-known the distance between these protuberances bemanner. ing equal to the thickness of the cover, so 75 The invention may be briefly summarized that when the cover is fitted over the post,

as consisting in certain novel details of conthe lower protuberance will engage its lower struction, and combinations and arrangesurface and the upper protuberances will enments of parts which will be described in the gage its upper surface. The cover has sufspecification and set forth in the -appended cient iiexibility that it can be forced down soV claims. over the upper protuberances.

.'.In the accompanying sheet of drawings The terminal post openings of the cover` wherein I have illustrated the preferred conare preferably located -adjacent two opposite struction, Fig.` 1 is a vertical sectional view corners of the cover, as shown inthe plan 5 substantially along the line 1-1 of Fig. 3, view, and between the lterminal post open- 85 looking in the direction indicated by the ings the cover is provided with an elongated arrows; Fig. Qis a vertical sectional view and irregularly shaped depression 11b, and substantially along the'line 2--2of Fig. 3, extending through the cover near the ends looking in the direction indicated by the arof the depression and adjacent the two other 40 rows; Fig. 3 is a plan view; Fig. 4is atransopposite or diagonally disposed corners of 90 verse sectional view; Fig. 5 is a top plan the cover are a small vent opening 11 and view of the cover removed from the jar; a relatively large iill'ng opening 11d.

Fig. 6 is a transverse sectional View substan- The vent opening is open at all times, but tially along the line 6-6 of Fig. 5; Fig. 7 the filling opening is normally closed by a is a sectional view substantially along the tapered plug 14 which normally fits friction 9,5

line 7-7 of Fig. 5; Fig. 8 is a top plan view tight in the filling opening, the latter havof the filling plug; and Fig. 9 is a perspecing a tapered inner wall, as illustrated.

tive view o'f the same. The filling plug 14 is provided at the top Referring now to the drawings, 10 reprewith a wing 14, which as shown, projects sents a jar formed of insulating material, laterally from the plug, forming a handle 100 portion which is designed to be gras ed between the thumbA and index finger w en the plug is being removed or restored; by rovidmg this lateral extension at the top o the 5 plug, the latter can be readily removed without serious interference by the crossconnectors which connect the posts of the different cells. As the cells are small and grouped closel together, the cross-connectors have n inter ered with the removal and restoration of the plu s, but this disadvantage is largely overcome y the present construction.

By locating the terminal post openings near diagonally opposite corners of the cover, or in the relatively thick portion thereof, and by providing between the corner portions through which the posts are adapted to extend, the depressed part from which the/vent and filling openings extend, it will zo be obvious that if an electrolyte should find its way to the top o the cover it will be retained in the depression 11b and will run back into the cell.

do not desire to be conined to the pre- '96 cise details shown, but aim in my claims to cover al1 modifications which do not involve a departure from the spirit and scope of my invention.r

Having described my invention, I claim: 1. storage battery com rising a jar having a cover frictionally tted into the top of the jar, plates supported by the cover and having terminal posts tightly fitted in the cover and extending through the same adjacent diagonally opposite corners thereof, the cover having a depressed part between the terminal posts, and one or more openings extending therethrough from the base of the depression.

2. A storage battery comprising a jar hav ing a cover and provided with plates with terminal posts extending through the cover, a depression adjacent said posts, the cover having a filling opening at one end of the depression and extending therethrough, a friction plug normally closing the opening and provided with a handle portion projecting laterally beyond the side of the plug and a vent opening at the other end of said 60 depressio 3. A storage battery comprising a jar havl y ing n. cover provided with a substantially fiat under surface, plates in the jar having terminal posts extending upwardly through the cover adjacent opposite corners thereof,

the cover having a diagonally disposed depression lying between said posts the bottom thereofbeing substantially parallel with the under surface of said cover, and an opening extending through the base of said depression.

In testimony whereof, I hereunto affix my signature. u CARL J. DUNZWEILER. 

